Hvala svima na odgovorima, resio sam. Evo source koda, mozda ce nekome biti od koristi :
Code:
// Delete key from Registry
procedure RegDelKey(root : HKEY; path, value : String);
var
hndKey : HKEY;
begin
RegCreateKey(root, PChar(path), hndKey);
RegDeleteValue(hndKey, PChar(value));
RegCloseKey(hndKey);
End;
// Add key to Registry
procedure RegAddKey(root : HKEY; path, name, value : String);
var
hndKey : HKEY;
begin
RegCreateKey(root, PChar(path), hndKey);
RegSetValueEx(hndKey, PChar(name), 0, REG_SZ, PChar(value), Length(value) + 1);
RegCloseKey(hndKey);
End;